Display screen or portion thereof having a graphical user interface for a link to an operations interface



The sole FIGURE is a front view of a display screen or portion thereof having a graphical user interface for a link to an operations interface showing our new design.

The broken lines depict portions of the display screen or portion thereof having a graphical user interface for a link to an operations interface in which the design is embodied that form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof having a graphical user interface for a link to an operations interface, as shown and described. 